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发明名称
MATRICES AND METHOD OF MAKING SAME
摘要
申请公布号
CA533348(A)
申请公布日期
1956.11.20
申请号
CAD533348
申请日期
申请人
AMERICAN SCREW COMPANY
发明人
DOMNIC V. STELLIN
分类号
主分类号
代理机构
代理人
主权项
地址
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